Comments:

In fairness most of the cast spent WEEKS trapped in the TV world before Yu rescued them. Granted for that reason it'd make sense to have Yosuke be the one to freak out about that as he never got kidnapped.

How long they stayed in TV world depended on how long you took before you rescued them. I never did understand how they survive with no food or water for so long though. Even stranger is that they each recover on a fixed date after being rescued. Literally the longer they were stuck in there the shorter their recovery time.